Long-distance telephone calls, media endowment and contact network: An empirical study

2013 ◽  
Author(s):  
Rico Maggi ◽  
Alessandro Cento
Keyword(s):  
Empirical Study ◽  
Contact Network ◽  
Long Distance ◽  
Telephone Calls

Empirical Tests on Regressive Estimations: Implications on Surveys and Diaries

2004 ◽  
Vol 94 (3) ◽  
pp. 1061-1074 ◽  
Author(s):  
Rex S. Toh ◽  
Eunkyu Lee ◽  
Michael Y. Hu
Keyword(s):  
Real Life ◽  
Average Frequency ◽  
Actual Behavior ◽  
Long Distance ◽  
Estimation Errors ◽  
The Mean ◽  
Telephone Calls ◽  
Empirical Tests ◽  
Survey Responses ◽  
Behavioral Frequencies

Using a large real-life corporate database initially consisting of 3,990 heads of households stratified on the basis of various demographic and geographic variables, and whose communication activities (long distance telephone calls, letters, cards, and visits) were surveyed and monitored, this study investigated the direction as well as magnitude of estimation errors in survey responses and diary entries. Supporting the 1994 Fiedler and Armbruster psychometric formulation and conjecture, we show that estimation errors in reports of the frequency and duration of people's own communication activities exhibit a consistent tendency to regress toward the mean. This regressive estimation is greater for those who are further away from the mean in actual behavior and is proportional to the actual deviation from the mean. Furthermore, this regressive estimation is inversely related to the average frequency across behavioral categories. An important implication of our findings is that the distribution of estimated behavioral frequencies and durations appear more concentrated in surveys than they actually are in the general population, although the general shape of the distribution is unaffected.

Measurement of long-distance Wi-Fi connections: An empirical study

2014 ◽  
Author(s):  
Ching-Hsiang Chu ◽  
You-Ming Chen ◽  
Yu-Te Huang ◽  
Roberto Carvalho ◽  
Chiun-Chieh Hsu ◽  
...  
Keyword(s):  
Empirical Study ◽  
Long Distance

Experimental evidence supporting the overlapping distribution of core and exempt anaphors: Re-examination of long-distance bound caki-casin in Korean

Linguistics ◽  
2020 ◽  
Vol 58 (6) ◽  
pp. 1775-1806
Author(s):  
Eun Hee Kim ◽  
James Yoon
Keyword(s):  
Empirical Study ◽  
Experimental Evidence ◽  
Long Distance ◽  
Complementary Distribution ◽  
Distance Bound ◽  
Local Binding ◽  
Rule Out

AbstractThe Korean anaphor caki-casin, which has been regarded as a local anaphor, has been shown to allow long-distance binding when local binding is not an option (Kim, Ji-Hye & James Yoon. 2009. Long-distance bound local anaphors in Korean: An empirical study of the Korean anaphor caki-casin. Lingua 119. 733–755). In this study, we examined the long-distance binding of caki-casin in domains where local binding is possible, and compare it with the long-distance binding of caki, the representative long-distance anaphor in Korean. Our investigation revealed that the availability of local binding does not rule out long-distance/exempt binding of caki-casin. The results imply that core and exempt binding may not be in complementary distribution, at least in Korean.

scholarly journals Long-Distance Travel Behaviours Accelerate and Aggravate the Large-Scale Spatial Spreading of Infectious Diseases

2014 ◽  
Vol 2014 ◽  
pp. 1-10
Author(s):  
Zhijing Xu ◽  
Zhenghu Zu ◽  
Tao Zheng ◽  
Wendou Zhang ◽  
Qing Xu ◽  
...  
Keyword(s):  
Infectious Diseases ◽  
Large Scale ◽  
Connected Components ◽  
Contact Network ◽  
Model Parameters ◽  
Long Distance ◽  
Wide Range ◽  
Distance Travel ◽  
Long Distance Travel ◽  
Spatial Spreading

The study analyses the role of long-distance travel behaviours on the large-scale spatial spreading of directly transmitted infectious diseases, focusing on two different travel types in terms of the travellers travelling to a specific group or not. For this purpose, we have formulated and analysed a metapopulation model in which the individuals in each subpopulation are organised into a scale-free contact network. The long-distance travellers between the subpopulations will temporarily change the network structure of the destination subpopulation through the “merging effects (MEs),” which indicates that the travellers will be regarded as either connected components or isolated nodes in the contact network. The results show that the presence of the MEs has constantly accelerated the transmission of the diseases and aggravated the outbreaks compared to the scenario in which the diversity of the long-distance travel types is arbitrarily discarded. Sensitivity analyses show that these results are relatively constant regarding a wide range variation of several model parameters. Our study has highlighted several important causes which could significantly affect the spatiotemporal disease dynamics neglected by the present studies.

scholarly journals The ECHELON Trail: An Illegal Vision

2002 ◽  
Vol 3 (2/3) ◽  
Author(s):  
Steve Wright
Keyword(s):  
Women Activists ◽  
Post Office ◽  
Political Debate ◽  
Long Distance ◽  
The North ◽  
The Us ◽  
Telephone Calls ◽  
And Function ◽  
Role And Function ◽  
Modelling Process

This article tells the story behind the uncovering of the US operated global telecommunications interceptions system now known as ECHELON. It begins with the use of fieldwork techniques in the early 1970's exploring the configuration of Britain's Post Office Towers – these were ostensibly the microwave links through which Britain's long distance telephone calls were made. This modelling process revealed a system within the system of microwave towers linked to the American Base of Menwith Hill in the North York Moors. All the key researchers were then promptly arrested, a raid by Special Branch on the author's university at Lancaster ensued and later a show trail for the other main researchers, most notably Duncan Campbell. Eventually in 1988, Duncan wrote up the ECHELON story, which for its time was an incredible piece of detective work using materials lifted from waste bins by the women activists campaigning around the Menwith Hill Base. Little notice was taken until 1997 when an obscure book by Nicky Hager, Secret Power explained the role and function of ECHELON in more depth. The author represented these findings in a policy report to the European Parliament on the technology of political control that led to a process of political debate and disagreement of the ethics of such a system which continues even today.

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